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test-path-util.c
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/* SPDX-License-Identifier: LGPL-2.1+ */
#include <stdio.h>
#include <unistd.h>
#include "alloc-util.h"
#include "fd-util.h"
#include "macro.h"
#include "mount-util.h"
#include "path-util.h"
#include "rm-rf.h"
#include "stat-util.h"
#include "string-util.h"
#include "strv.h"
#include "tests.h"
#include "util.h"
#define test_path_compare(a, b, result) { \
assert_se(path_compare(a, b) == result); \
assert_se(path_compare(b, a) == -result); \
assert_se(path_equal(a, b) == !result); \
assert_se(path_equal(b, a) == !result); \
}
static void test_path_simplify(const char *in, const char *out, const char *out_dot) {
char *p;
p = strdupa(in);
assert_se(streq(path_simplify(p, false), out));
p = strdupa(in);
assert_se(streq(path_simplify(p, true), out_dot));
}
static void test_path(void) {
_cleanup_close_ int fd = -1;
test_path_compare("/goo", "/goo", 0);
test_path_compare("/goo", "/goo", 0);
test_path_compare("//goo", "/goo", 0);
test_path_compare("//goo/////", "/goo", 0);
test_path_compare("goo/////", "goo", 0);
test_path_compare("/goo/boo", "/goo//boo", 0);
test_path_compare("//goo/boo", "/goo/boo//", 0);
test_path_compare("/", "///", 0);
test_path_compare("/x", "x/", 1);
test_path_compare("x/", "/", -1);
test_path_compare("/x/./y", "x/y", 1);
test_path_compare("x/.y", "x/y", -1);
test_path_compare("foo", "/foo", -1);
test_path_compare("/foo", "/foo/bar", -1);
test_path_compare("/foo/aaa", "/foo/b", -1);
test_path_compare("/foo/aaa", "/foo/b/a", -1);
test_path_compare("/foo/a", "/foo/aaa", -1);
test_path_compare("/foo/a/b", "/foo/aaa", -1);
assert_se(path_is_absolute("/"));
assert_se(!path_is_absolute("./"));
assert_se(is_path("/dir"));
assert_se(is_path("a/b"));
assert_se(!is_path("."));
assert_se(streq(basename("./aa/bb/../file.da."), "file.da."));
assert_se(streq(basename("/aa///.file"), ".file"));
assert_se(streq(basename("/aa///file..."), "file..."));
assert_se(streq(basename("file.../"), ""));
fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY|O_NOCTTY);
assert_se(fd >= 0);
assert_se(fd_is_mount_point(fd, "/", 0) > 0);
test_path_simplify("aaa/bbb////ccc", "aaa/bbb/ccc", "aaa/bbb/ccc");
test_path_simplify("//aaa/.////ccc", "/aaa/./ccc", "/aaa/ccc");
test_path_simplify("///", "/", "/");
test_path_simplify("///.//", "/.", "/");
test_path_simplify("///.//.///", "/./.", "/");
test_path_simplify("////.././///../.", "/.././../.", "/../..");
test_path_simplify(".", ".", ".");
test_path_simplify("./", ".", ".");
test_path_simplify(".///.//./.", "./././.", ".");
test_path_simplify(".///.//././/", "./././.", ".");
test_path_simplify("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/.",
"/./aaa/././.bbb/../c./d.dd/..eeee/.",
"/aaa/.bbb/../c./d.dd/..eeee");
test_path_simplify("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
"/./aaa/././.bbb/../c./d.dd/..eeee/..",
"/aaa/.bbb/../c./d.dd/..eeee/..");
test_path_simplify(".//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
"././aaa/././.bbb/../c./d.dd/..eeee/..",
"aaa/.bbb/../c./d.dd/..eeee/..");
test_path_simplify("..//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
".././aaa/././.bbb/../c./d.dd/..eeee/..",
"../aaa/.bbb/../c./d.dd/..eeee/..");
assert_se(PATH_IN_SET("/bin", "/", "/bin", "/foo"));
assert_se(PATH_IN_SET("/bin", "/bin"));
assert_se(PATH_IN_SET("/bin", "/foo/bar", "/bin"));
assert_se(PATH_IN_SET("/", "/", "/", "/foo/bar"));
assert_se(!PATH_IN_SET("/", "/abc", "/def"));
assert_se(path_equal_ptr(NULL, NULL));
assert_se(path_equal_ptr("/a", "/a"));
assert_se(!path_equal_ptr("/a", "/b"));
assert_se(!path_equal_ptr("/a", NULL));
assert_se(!path_equal_ptr(NULL, "/a"));
}
static void test_path_equal_root(void) {
/* Nail down the details of how path_equal("/", ...) works. */
assert_se(path_equal("/", "/"));
assert_se(path_equal("/", "//"));
assert_se(!path_equal("/", "/./"));
assert_se(!path_equal("/", "/../"));
assert_se(!path_equal("/", "/.../"));
/* Make sure that files_same works as expected. */
assert_se(files_same("/", "/", 0) > 0);
assert_se(files_same("/", "/", AT_SYMLINK_NOFOLLOW) > 0);
assert_se(files_same("/", "//", 0) > 0);
assert_se(files_same("/", "//", AT_SYMLINK_NOFOLLOW) > 0);
assert_se(files_same("/", "/./", 0) > 0);
assert_se(files_same("/", "/./", AT_SYMLINK_NOFOLLOW) > 0);
assert_se(files_same("/", "/../", 0) > 0);
assert_se(files_same("/", "/../", AT_SYMLINK_NOFOLLOW) > 0);
assert_se(files_same("/", "/.../", 0) == -ENOENT);
assert_se(files_same("/", "/.../", AT_SYMLINK_NOFOLLOW) == -ENOENT);
/* The same for path_equal_or_files_same. */
assert_se(path_equal_or_files_same("/", "/", 0));
assert_se(path_equal_or_files_same("/", "/", AT_SYMLINK_NOFOLLOW));
assert_se(path_equal_or_files_same("/", "//", 0));
assert_se(path_equal_or_files_same("/", "//", AT_SYMLINK_NOFOLLOW));
assert_se(path_equal_or_files_same("/", "/./", 0));
assert_se(path_equal_or_files_same("/", "/./", AT_SYMLINK_NOFOLLOW));
assert_se(path_equal_or_files_same("/", "/../", 0));
assert_se(path_equal_or_files_same("/", "/../", AT_SYMLINK_NOFOLLOW));
assert_se(!path_equal_or_files_same("/", "/.../", 0));
assert_se(!path_equal_or_files_same("/", "/.../", AT_SYMLINK_NOFOLLOW));
}
static void test_find_binary(const char *self) {
char *p;
assert_se(find_binary("/bin/sh", &p) == 0);
puts(p);
assert_se(path_equal(p, "/bin/sh"));
free(p);
assert_se(find_binary(self, &p) == 0);
puts(p);
/* libtool might prefix the binary name with "lt-" */
assert_se(endswith(p, "/lt-test-path-util") || endswith(p, "/test-path-util"));
assert_se(path_is_absolute(p));
free(p);
assert_se(find_binary("sh", &p) == 0);
puts(p);
assert_se(endswith(p, "/sh"));
assert_se(path_is_absolute(p));
free(p);
assert_se(find_binary("xxxx-xxxx", &p) == -ENOENT);
assert_se(find_binary("/some/dir/xxxx-xxxx", &p) == -ENOENT);
}
static void test_prefixes(void) {
static const char* values[] = { "/a/b/c/d", "/a/b/c", "/a/b", "/a", "", NULL};
unsigned i;
char s[PATH_MAX];
bool b;
i = 0;
PATH_FOREACH_PREFIX_MORE(s, "/a/b/c/d") {
log_error("---%s---", s);
assert_se(streq(s, values[i++]));
}
assert_se(values[i] == NULL);
i = 1;
PATH_FOREACH_PREFIX(s, "/a/b/c/d") {
log_error("---%s---", s);
assert_se(streq(s, values[i++]));
}
assert_se(values[i] == NULL);
i = 0;
PATH_FOREACH_PREFIX_MORE(s, "////a////b////c///d///////")
assert_se(streq(s, values[i++]));
assert_se(values[i] == NULL);
i = 1;
PATH_FOREACH_PREFIX(s, "////a////b////c///d///////")
assert_se(streq(s, values[i++]));
assert_se(values[i] == NULL);
PATH_FOREACH_PREFIX(s, "////")
assert_not_reached("Wut?");
b = false;
PATH_FOREACH_PREFIX_MORE(s, "////") {
assert_se(!b);
assert_se(streq(s, ""));
b = true;
}
assert_se(b);
PATH_FOREACH_PREFIX(s, "")
assert_not_reached("wut?");
b = false;
PATH_FOREACH_PREFIX_MORE(s, "") {
assert_se(!b);
assert_se(streq(s, ""));
b = true;
}
}
static void test_path_join(void) {
#define test_join(root, path, rest, expected) { \
_cleanup_free_ char *z = NULL; \
z = path_join(root, path, rest); \
assert_se(streq(z, expected)); \
}
test_join("/root", "/a/b", "/c", "/root/a/b/c");
test_join("/root", "a/b", "c", "/root/a/b/c");
test_join("/root", "/a/b", "c", "/root/a/b/c");
test_join("/root", "/", "c", "/root/c");
test_join("/root", "/", NULL, "/root/");
test_join(NULL, "/a/b", "/c", "/a/b/c");
test_join(NULL, "a/b", "c", "a/b/c");
test_join(NULL, "/a/b", "c", "/a/b/c");
test_join(NULL, "/", "c", "/c");
test_join(NULL, "/", NULL, "/");
}
static void test_fsck_exists(void) {
/* Ensure we use a sane default for PATH. */
unsetenv("PATH");
/* fsck.minix is provided by util-linux and will probably exist. */
assert_se(fsck_exists("minix") == 1);
assert_se(fsck_exists("AbCdE") == 0);
assert_se(fsck_exists("/../bin/") == 0);
}
static void test_make_relative(void) {
char *result;
assert_se(path_make_relative("some/relative/path", "/some/path", &result) < 0);
assert_se(path_make_relative("/some/path", "some/relative/path", &result) < 0);
assert_se(path_make_relative("/some/dotdot/../path", "/some/path", &result) < 0);
#define test(from_dir, to_path, expected) { \
_cleanup_free_ char *z = NULL; \
path_make_relative(from_dir, to_path, &z); \
assert_se(streq(z, expected)); \
}
test("/", "/", ".");
test("/", "/some/path", "some/path");
test("/some/path", "/some/path", ".");
test("/some/path", "/some/path/in/subdir", "in/subdir");
test("/some/path", "/", "../..");
test("/some/path", "/some/other/path", "../other/path");
test("/some/path/./dot", "/some/further/path", "../../further/path");
test("//extra.//.//./.slashes//./won't////fo.ol///anybody//", "/././/extra././/.slashes////ar.e/.just/././.fine///", "../../../ar.e/.just/.fine");
}
static void test_strv_resolve(void) {
char tmp_dir[] = "/tmp/test-path-util-XXXXXX";
_cleanup_strv_free_ char **search_dirs = NULL;
_cleanup_strv_free_ char **absolute_dirs = NULL;
char **d;
assert_se(mkdtemp(tmp_dir) != NULL);
search_dirs = strv_new("/dir1", "/dir2", "/dir3");
assert_se(search_dirs);
STRV_FOREACH(d, search_dirs) {
char *p = strappend(tmp_dir, *d);
assert_se(p);
assert_se(strv_push(&absolute_dirs, p) == 0);
}
assert_se(mkdir(absolute_dirs[0], 0700) == 0);
assert_se(mkdir(absolute_dirs[1], 0700) == 0);
assert_se(symlink("dir2", absolute_dirs[2]) == 0);
path_strv_resolve(search_dirs, tmp_dir);
assert_se(streq(search_dirs[0], "/dir1"));
assert_se(streq(search_dirs[1], "/dir2"));
assert_se(streq(search_dirs[2], "/dir2"));
assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
}
static void test_path_startswith(void) {
const char *p;
p = path_startswith("/foo/bar/barfoo/", "/foo");
assert_se(streq_ptr(p, "bar/barfoo/"));
p = path_startswith("/foo/bar/barfoo/", "/foo/");
assert_se(streq_ptr(p, "bar/barfoo/"));
p = path_startswith("/foo/bar/barfoo/", "/");
assert_se(streq_ptr(p, "foo/bar/barfoo/"));
p = path_startswith("/foo/bar/barfoo/", "////");
assert_se(streq_ptr(p, "foo/bar/barfoo/"));
p = path_startswith("/foo/bar/barfoo/", "/foo//bar/////barfoo///");
assert_se(streq_ptr(p, ""));
p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo////");
assert_se(streq_ptr(p, ""));
p = path_startswith("/foo/bar/barfoo/", "/foo/bar///barfoo/");
assert_se(streq_ptr(p, ""));
p = path_startswith("/foo/bar/barfoo/", "/foo////bar/barfoo/");
assert_se(streq_ptr(p, ""));
p = path_startswith("/foo/bar/barfoo/", "////foo/bar/barfoo/");
assert_se(streq_ptr(p, ""));
p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo");
assert_se(streq_ptr(p, ""));
assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa/"));
assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa"));
assert_se(!path_startswith("/foo/bar/barfoo/", ""));
assert_se(!path_startswith("/foo/bar/barfoo/", "/bar/foo"));
assert_se(!path_startswith("/foo/bar/barfoo/", "/f/b/b/"));
}
static void test_prefix_root_one(const char *r, const char *p, const char *expected) {
_cleanup_free_ char *s = NULL;
const char *t;
assert_se(s = prefix_root(r, p));
assert_se(streq_ptr(s, expected));
t = prefix_roota(r, p);
assert_se(t);
assert_se(streq_ptr(t, expected));
}
static void test_prefix_root(void) {
test_prefix_root_one("/", "/foo", "/foo");
test_prefix_root_one(NULL, "/foo", "/foo");
test_prefix_root_one("", "/foo", "/foo");
test_prefix_root_one("///", "/foo", "/foo");
test_prefix_root_one("/", "////foo", "/foo");
test_prefix_root_one(NULL, "////foo", "/foo");
test_prefix_root_one("/foo", "/bar", "/foo/bar");
test_prefix_root_one("/foo", "bar", "/foo/bar");
test_prefix_root_one("foo", "bar", "foo/bar");
test_prefix_root_one("/foo/", "/bar", "/foo/bar");
test_prefix_root_one("/foo/", "//bar", "/foo/bar");
test_prefix_root_one("/foo///", "//bar", "/foo/bar");
}
static void test_file_in_same_dir(void) {
char *t;
t = file_in_same_dir("/", "a");
assert_se(streq(t, "/a"));
free(t);
t = file_in_same_dir("/", "/a");
assert_se(streq(t, "/a"));
free(t);
t = file_in_same_dir("", "a");
assert_se(streq(t, "a"));
free(t);
t = file_in_same_dir("a/", "a");
assert_se(streq(t, "a/a"));
free(t);
t = file_in_same_dir("bar/foo", "bar");
assert_se(streq(t, "bar/bar"));
free(t);
}
static void test_last_path_component(void) {
assert_se(streq(last_path_component("a/b/c"), "c"));
assert_se(streq(last_path_component("a/b/c/"), "c/"));
assert_se(streq(last_path_component("/"), "/"));
assert_se(streq(last_path_component("//"), "/"));
assert_se(streq(last_path_component("///"), "/"));
assert_se(streq(last_path_component("."), "."));
assert_se(streq(last_path_component("./."), "."));
assert_se(streq(last_path_component("././"), "./"));
assert_se(streq(last_path_component("././/"), ".//"));
assert_se(streq(last_path_component("/foo/a"), "a"));
assert_se(streq(last_path_component("/foo/a/"), "a/"));
assert_se(streq(last_path_component(""), ""));
assert_se(streq(last_path_component("a"), "a"));
assert_se(streq(last_path_component("a/"), "a/"));
assert_se(streq(last_path_component("/a"), "a"));
assert_se(streq(last_path_component("/a/"), "a/"));
}
static void test_filename_is_valid(void) {
char foo[FILENAME_MAX+2];
int i;
assert_se(!filename_is_valid(""));
assert_se(!filename_is_valid("/bar/foo"));
assert_se(!filename_is_valid("/"));
assert_se(!filename_is_valid("."));
assert_se(!filename_is_valid(".."));
for (i=0; i<FILENAME_MAX+1; i++)
foo[i] = 'a';
foo[FILENAME_MAX+1] = '\0';
assert_se(!filename_is_valid(foo));
assert_se(filename_is_valid("foo_bar-333"));
assert_se(filename_is_valid("o.o"));
}
static void test_hidden_or_backup_file(void) {
assert_se(hidden_or_backup_file(".hidden"));
assert_se(hidden_or_backup_file("..hidden"));
assert_se(!hidden_or_backup_file("hidden."));
assert_se(hidden_or_backup_file("backup~"));
assert_se(hidden_or_backup_file(".backup~"));
assert_se(hidden_or_backup_file("lost+found"));
assert_se(hidden_or_backup_file("aquota.user"));
assert_se(hidden_or_backup_file("aquota.group"));
assert_se(hidden_or_backup_file("test.rpmnew"));
assert_se(hidden_or_backup_file("test.dpkg-old"));
assert_se(hidden_or_backup_file("test.dpkg-remove"));
assert_se(hidden_or_backup_file("test.swp"));
assert_se(!hidden_or_backup_file("test.rpmnew."));
assert_se(!hidden_or_backup_file("test.dpkg-old.foo"));
}
static void test_systemd_installation_has_version(const char *path) {
int r;
const unsigned versions[] = {0, 231, atoi(PACKAGE_VERSION), 999};
unsigned i;
for (i = 0; i < ELEMENTSOF(versions); i++) {
r = systemd_installation_has_version(path, versions[i]);
assert_se(r >= 0);
log_info("%s has systemd >= %u: %s",
path ?: "Current installation", versions[i], yes_no(r));
}
}
static void test_skip_dev_prefix(void) {
assert_se(streq(skip_dev_prefix("/"), "/"));
assert_se(streq(skip_dev_prefix("/dev"), ""));
assert_se(streq(skip_dev_prefix("/dev/"), ""));
assert_se(streq(skip_dev_prefix("/dev/foo"), "foo"));
assert_se(streq(skip_dev_prefix("/dev/foo/bar"), "foo/bar"));
assert_se(streq(skip_dev_prefix("//dev"), ""));
assert_se(streq(skip_dev_prefix("//dev//"), ""));
assert_se(streq(skip_dev_prefix("/dev///foo"), "foo"));
assert_se(streq(skip_dev_prefix("///dev///foo///bar"), "foo///bar"));
assert_se(streq(skip_dev_prefix("//foo"), "//foo"));
assert_se(streq(skip_dev_prefix("foo"), "foo"));
}
static void test_empty_or_root(void) {
assert_se(empty_or_root(NULL));
assert_se(empty_or_root(""));
assert_se(empty_or_root("/"));
assert_se(empty_or_root("//"));
assert_se(empty_or_root("///"));
assert_se(empty_or_root("/////////////////"));
assert_se(!empty_or_root("xxx"));
assert_se(!empty_or_root("/xxx"));
assert_se(!empty_or_root("/xxx/"));
assert_se(!empty_or_root("//yy//"));
}
int main(int argc, char **argv) {
test_setup_logging(LOG_DEBUG);
test_path();
test_path_equal_root();
test_find_binary(argv[0]);
test_prefixes();
test_path_join();
test_fsck_exists();
test_make_relative();
test_strv_resolve();
test_path_startswith();
test_prefix_root();
test_file_in_same_dir();
test_last_path_component();
test_filename_is_valid();
test_hidden_or_backup_file();
test_skip_dev_prefix();
test_empty_or_root();
test_systemd_installation_has_version(argv[1]); /* NULL is OK */
return 0;
}